Circular Motion and Gravity

What is the centripetal force of a .2 kg yoyo spun in a circle with a radius of .7 meters at a velocity of 3 m/s?

• 2.05 N

• 2.57 N

• 2.90 N

• 3.13 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

A ball is moving in a circle, counterclockwise.

Which vector arrow represents the acceleration of the ball?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

A ball is moving in a circle, counterclockwise.<\/p>

Which vector arrow represents the velocity of the ball?<\/p>

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if the distance between them were doubled?

• 9 N

• 18 N

• 72 N

• 144 N

Tags

NGSS.MS-PS2-4

Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if one of the masses were doubled?

• 9 N

• 18 N

• 72 N

• 144 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of the following changes would INCREASE the magnitude of gravitational force? Select all that apply!

• Greater Mass

• Lesser Mass

• Shorter Distance

• Further Distance

Tags

NGSS.MS-PS2-4

Which description best describes the velocity of an object in uniform circular motion?

• It changes magnitude and is tangent to the circle.

• It constantly changes magnitude and direction.

• It changes direction and is tangent to the circle.

• It changes magnitude and is towards the center of the circle.

What is the centripetal acceleration of the ball?

Tags

NGSS.HS-PS2-1

What is at one focus of a planet's orbit?

• Planet

• Sun

• Comet

• Moon

Neptune is 30 times further away from the Sun than Earth is.

Find Neptune's orbital period in terms of years.

• 164 years

• 84 years

• 30 years

• 97 years

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3